NiteFighter BT40 , better than MJ872?

1. The LED indicator are not alway ON, it is waste electricity. BT40 only the light ON, then the LED indicator ON;
2.Press 0.8 seconds to OFF since the hot surface;
3. Package also include helmet mount;
4. Better gift box and foam...

It is also come with four BAK A standard 18650 batteries, 7.4V 4400mAh;